Xuanwu Backend Tech Stack
Dec 9, 2025 · Databases
Why UUID Primary Keys Trigger InnoDB Page Splits and How to Prevent Them
This article explains the internal mechanics of MySQL 8.0 InnoDB pages, how random primary keys such as UUID cause costly page splits and merges, and provides Java‑level best practices and MySQL commands to optimize primary‑key design for better performance and space utilization.
InnoDBMySQLPage Merge
0 likes · 14 min read